Mr. Bentham's Account of two new Genera allied to Olacineae. 673 



The calyx at the time of flowering is very small, cupuliform, with the mar- 

 gin entire, or bearing as many minute teeth as there are petals. It is quite 

 free in Ximenia, He/steria, Gomphandra, Icacina, Apodytes, Leretia and Pago- 

 pefalum, very slightly adherent to the ovary in the East Indian and Australian 

 species of Olax, and decidedly adherent, with a very short, free and entire 

 margin in the American species of Olax and in Svhapjia. In OpUia and 

 Cansjera it is little more than a dilatation of the torus with four or five 

 scarcely perceptible teeth, so that these genera appear at first sight mono- 

 chlamydeous. As the fruit ripens the calyx of OUlv enlarges and incloses the 

 drupe nearly to the top, but without adhering to it. In Schœjrfia it enlarges 

 in the same manner, but adheres closely to the fruit, as in Si/niplocos. In 

 Heiateria it becomes also much enlarged, but is spread out under the fruit 

 without inclosing it. In Ximeuia, Opilia, Gotnphundra, Apodytes, Icacina, 

 Leretia and Pogopetalnm it persists, but does not increase in size. 



The corolla, hypogynous where the calyx is entirely free, more or less 

 perigynous according to the degree of tidherence of the calyx, consists of 

 four, five or six petals, always valvate in their aestivation, usually of a thick- 

 ish consistence, and more or less cucullate at the apex, where they usually 

 terminate in an inflexed point. They cohere together in the form of a 

 monopetalous corolla above the middle in Schœpjîa and Cansjera ; they are 

 joined in pairs in Olax, and often cohere slightly at the base in the other 

 genera, but usually are entirely detached from each other when the flower is 

 fully open. 



The stamens, inserted with the petals, are free, or more or less connected 

 with the latter; their number is definite, and never exceeds double thatof tlie 

 petals. When this number is complete they are placed in two series, the inner 

 one opposite the petals, the outer one alternating with them. In Ximenia 

 and Heisteria both series are complete and fertile. In Go)nphand)a, Icacina, 

 Apodytes, Leretia and Pogopetalnm the outer series are alone complete and 

 fertile, the inner one being wanting. In Olax the outer series are complete, 

 but reduced to three (or sometimes four?), the inner series reduced to simple 

 or bifid filaments. In Opilia and Cansjera the outer series are reduced to 

 scale-like processes, whilst the inner are complete and fertile. In Schœj)fia 

 the inner series are also complete and fertile, but the outer ones are totally 



